A microshear test to measure bond strengths of dentin–polymer interfaces

McDonough, Walter G.; Antonucci, Joseph M.; He, Jianmei; Shimada, Yasushi; Chiang, Martin Y.; Schumacher, Gary E.; Schultheisz, Carl R.

doi:10.1016/s0142-9612(02)00089-3

Cited by 124 publications

(118 citation statements)

References 6 publications

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“…Shear bond strength tests have been widely used, mainly because of their relative simplicity and predictability when compared to tensile bond strength tests, in which it is difficult to align the specimen in the testing machine without creating deleterious stress distribution [30]. Advantages in shear tests include specimen preparation and simple test protocols [31]. A new test method using specimens with reduced dimensions has been advocated by some authors [32,33] as a substitute for the conventional shear test: so-called microbond or micro-shear bond strength test.…”

Section: Discussionmentioning

confidence: 99%

“…A dentin slice, approximately 1.0 mm thick, was cut perpendicular to the long axis of each tooth from the upper-middle coronal portion region using a low-speed diamond saw (IsoMet®, Buehler, Lake Bluff, IL) under water coolant. The occlusal surfaces of slices were ground with silicon carbide paper up to #600 grit to expose a flat dentin surface [22][23][24][25]. The dentin slices were randomly divided into three main groups (containing 10 each) according to the type of composite resins used.…”

Section: Introductionmentioning

confidence: 99%

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An In-Vitro Assessment of Micro-Shear Bond Strength of a Nano Adhesive to Dentin with Different types of Composite Restorative Systems

Shamrani¹

2016

JDHODT

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Objective: The present study evaluated the micro-shear bond strength of a nano adhesive to dentin with different types of composite restorative systems. Materials and method:Thirty caries-free, freshly extracted human molar teeth were sliced to expose dentin. The dentin slices were randomly divided into three main groups (10 each) and bonding was done at three sites so as to create total 90 samples with 30 in each group. Group A: nanofilled Composite, Group B: Tetric EvoCeram Bulk fill and Group C: Sonic Fill Bulk fills composite. Adhesive (nano bond) was used for bonding in all the groups. After 24 hours of immersion in water at 37°C, then subjected to thermocycling, a micro-shear bond test was carried out. One way analysis of variance (ANOVA) and Tukey's tests were used for testing the significance between the means of tested groups (P value ≤ 0.05). Result:The mean micro-shear bond strength values for Groups A, B, C were 10.4, 13.85 and 17.16 MPa respectively. Conclusion:Sonic Fill Bulk fills composite and nano bond displayed the highest micro-shear bond strength to dentin.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An In-Vitro Assessment of Micro-Shear Bond Strength of a Nano Adhesive to Dentin with Different types of Composite Restorative Systems

Shamrani¹

2016

JDHODT

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“…As for micro-shear bond testing, only a very small bonding area is needed when compared with conventional shear strength test. This should reduce the problems associated with stress distribution at bonding sites, which are inherent in conventional shear testing, and thereby give comparatively higher bond strengths 17,18) . It was reported that bonding of self-etching adhesives to ground enamel in moderately to severely fluorosed teeth was inferior compared to that rendered by phosphoric acid etching 19) .…”

Section: Discussionmentioning

confidence: 99%

Micro-shear Bond Strength of Two All-in-one Adhesive Systems to Unground Fluorosed Enamel

et al. 2007

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The aim of this study was to evaluate the micro-shear bond strengths of two all-in-one adhesive systems to unground fluorosed enamel.Buccal surfaces of 24 normal and 24 moderately fluorosed teeth (Thylstrup and Fejerskov index, TFI＝4-6) were bonded using G-Bond and Clearfil Tri-S Bond. The surfaces were then restored with a resin composite, stored for 24 hours in water, and tested for micro-shear bond strength (MSBS). Fracture modes, etching patterns, and adhesive interfaces were studied under a scanning electron microscope (SEM). Data were analyzed with two-way ANOVA, whereby no significant differences in MSBS were found among the four groups (p>0.05). Through SEM examination, it was shown that 1 μm of resin tag-like extensions had penetrated into the enamel for both adhesives at the enamel-adhesive interface. Based on the results obtained, it was concluded that MSBS was not influenced by the severity of fluorosis. Furthermore, there were no differences in enamel bond strength between G-Bond and Clearfil Tri-S Bond.

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“…Moreover, by virtue of its overall simplicity, such as the ease of specimen preparation, simple test protocol, and the ability to rank different products according to bond strength values, several variations of shear bond testing have been widely applied. However, the tendency of failure in the dentinal substrate at loads far less than the shear strength of the dentin due to improved bond strength by the new adhesives, would limit the ability of the test to discern real differences among various adhesive systems 24) . Pashley et al 25) cited this particular issue as a limitation of using conventional shear tests and a reason to consider the microshear test as a reasonable alternative.…”

Section: ⅳ Discussionmentioning

confidence: 99%

The effect of various commercially available bleaching agents on the microshear bond strength of composite resin to enamel

Chang

Cho

Kim

2004

J Korean Acad Conserv Dent

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This study evaluated the microshear bond strength of composte resin to teeth bleached with commercial whitening strips and compared with those bleached with home bleaching gel. Twelve extracted human central incisors were cut into pieces and central four segments were chosen from each tooth and embedded in acrylic resin. Four blocks with 12 tooth segments embedded in acrylic resin were acquired and numbered from group one to group four. Group 1 was bleached with Crest Whitestrips, group 2 with Claren, group 3 with Opalescence tooth whitening gel (10% carbamide peroxide). Group 4 was used as control. The bleaching procedure was conducted for 14 days according to the manufacturer' s instructions; the bleaching strips twice a day for 30 min and the bleaching gel once a day for 2 hr. After bleaching, composite resin (Filtek Supreme) was bonded to the enamel surfaces with a self-etching adhesive (Adper Prompt L-Pop) using Tygon tube. Microshear bond strength was tested with a universal testing machine (EZ-test). The data were statistically analysed by one-way ANOVA. The study resulted in no statistical differences in microshear bond strength between the tooth segments bleached with 2 different whitening strips and bleaching gel. It can be concluded that the effect of bleaching with either commercial whitening strips or bleaching gel on enamel is minimal in bonding with self-etching adhesive to composite resin. [J Kor Acad Cons Dent 29(3):219-225, 2004]

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A microshear test to measure bond strengths of dentin–polymer interfaces

Cited by 124 publications

References 6 publications

An In-Vitro Assessment of Micro-Shear Bond Strength of a Nano Adhesive to Dentin with Different types of Composite Restorative Systems

An In-Vitro Assessment of Micro-Shear Bond Strength of a Nano Adhesive to Dentin with Different types of Composite Restorative Systems

Micro-shear Bond Strength of Two All-in-one Adhesive Systems to Unground Fluorosed Enamel

The effect of various commercially available bleaching agents on the microshear bond strength of composite resin to enamel

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